Somewhere in the last few decades, marriage picked up a vocabulary it was never built to carry — “what am I getting out of this,” “is this still working for me,” “we agreed to X, so if X changes, I’m out.” That’s not covenant language. That’s contract language, borrowed from business and quietly smuggled into the one relationship in Scripture explicitly designed not to run on it. Most couples do this without ever noticing, because contract thinking is the water we swim in every other hour of the day. Marriage is the one room in life where it doesn’t belong, and it’s worth asking, honestly, whether it’s already moved in.
Genesis wrote the definition before anyone could argue with it
Genesis 2:24 says, “Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.” Look closely at the verbs. Leave — a total transfer of primary allegiance, not a part-time reassignment. Cleave — from the Hebrew dabaq, meaning to cling, to glue, to permanently adhere, a word with no built-in exit ramp. One flesh — identity fusion, not two independent parties each quietly guarding their own separate interests under a shared roof.
That is not the architecture of a contract. A contract keeps two parties legally distinct, each protecting their own stake, with terms that can be renegotiated or voided the moment one side underperforms. Genesis 2:24 describes something closer to a graft than a deal — two lives grown into one, where damage to one side is damage to both, and there’s no longer a clean “my side” left to protect separately from “yours.”
What a contract actually promises, and what it quietly doesn’t
Contracts are conditional by design, and that’s not a flaw — that’s the whole point of a contract. It protects people in business, in employment, in service agreements: I do this if you do that, and if you stop holding up your end, my obligation ends too. That logic is healthy in a business deal. It’s corrosive in a marriage, because it turns love into a performance review conducted in real time, every day, with both spouses quietly keeping score.
I’ve sat with couples who couldn’t have told you, in so many words, that they were running their marriage on contract logic — but it was everywhere in how they talked. “I did the school run all week, so I don’t owe him a good mood tonight.” “She’s been distant, so I’ve stopped trying too.” Each of those is contract math:
commitment sized to recent performance, rather than fixed regardless of it. It’s an exhausting way to be married, because the terms have to be renegotiated constantly, and somebody is always checking the balance.
Malachi named this exact failure, out loud, by name
Malachi 2:14 doesn’t leave room for ambiguity about what God thinks of treating a spouse this way: “Yet ye say, Wherefore? Because the LORD hath been witness between thee and the wife of thy youth, against whom thou hast dealt treacherously: yet is she thy companion, and the wife of thy covenant.” Notice the specific language. Not “the wife you have an arrangement with” — “the wife of thy covenant.” And notice who’s named as witness: the Lord Himself, standing over the relationship, which means mistreatment of a spouse was never a private matter between two consenting parties quietly renegotiating terms. It’s treachery against someone Scripture calls a “companion” — real partnership, not a counterparty.
That word “treacherously” matters, too. Contracts get breached. Covenants get betrayed. Those are not the same category of failure, and Malachi doesn’t seem interested in blurring the two.
Union, not partnership
I’ve come to think the clearest way to say all this is a distinction I use constantly in session: a partnership and a union are not the same thing. A partnership is a contractual arrangement between two independent parties working together toward common goals — valuable, practical, and dissolvable the moment the terms stop working for one side. A union is categorically different. It’s two becoming one, not two cooperating while remaining two. Genesis 2:24 doesn’t say the couple will collaborate toward shared goals. It says they’ll become one flesh. In a partnership, sex is an activity partners share, like shared finances or shared parenting. In a union, it’s the recurring physical expression of a oneness that already exists — not creating something new each time, but embodying something already true.
What actually changes when you stop keeping score
The couples I’ve watched make real, lasting turnarounds are the ones who eventually stop asking “have they earned my continued commitment this week” and start operating from “I am one flesh with this person, and my commitment was never a reward I dispense for good behaviour.” That single shift changes almost everything downstream of it. How you fight, because you’re not quietly negotiating an exit, you’re working out a disagreement inside something permanent. How you repair, because forgiveness stops being a favour extended once the ledger balances back out. How you show up on the hard weeks, because covenant commitment was never designed to be conditional on either of you being at your best that particular day.
None of this means covenant erases accountability, or requires tolerating real harm indefinitely — that’s a different conversation, for a different post. It means the baseline posture toward each other stops being transactional and starts looking like what Genesis 2:24 actually describes: one flesh, cleaving, not two parties quietly keeping receipts on each other.
The line I want you to keep
A contract asks what you’re owed. A covenant asks what you’re grafted to. Genesis 2:24 never promised you a business arrangement with an exit clause — it promised you a one-flesh union, witnessed by God, that was never designed to be renegotiated every time it gets hard.
This is one of the shifts I spend real time on in the book — what actually changes, practically, when a couple stops treating their vows like fine print.
Sacred, but Fully Known launches October 3rd. Subscribe below for more of this, every week.
— Funke
Sacred, but Fully Known: A Faith-Rooted Guide to Intimacy in Marriage launches October 3rd, 2026. Subscribe above to follow the story, and to be first in line on launch day.
